JP2001072352A - Elevator apparatus having driving unit disposed in elevator hoistway - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator apparatus capable of utilizing the cross section of an elevator hoistway at optimum. SOLUTION: A driving unit 4 is partially disposed in a recess 1.21 of a first wall, and partially disposed on supports 1.22. A driving sheave 4.1 of the driving unit 4 is projected into an elevator hoistway 1. An elevator car 2 is connected to a counter weight 3 by a hanging rope, and the hanging rope is wrapped round the driving sheave 4.1 and a deflecting sheave and guided. A controller cabinet 6 is disposed on the upper side of the driving unit 4 disposed in the recess 1.21 of the first wall. The driving unit 4 and the controller cabinet can be approached from a landing floor through a maintenance door 1.23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus which is disposed in an elevator shaft and has a drive unit for driving an elevator car and a counterweight by a suspension rope.

[0002]

2. Description of the Related Art An elevator installation is known from patent application DE 197 52 232, in which a drive unit is arranged in an elevator shaft adjacent to the movement path of the elevator car and the movement path of the counterweight. The concrete base for the drive unit projects into the elevator shaft at the same height as the landing floor allowing space for the elevator car and counterweight so that the elevator car and counterweight can pass through the concrete base. In addition, it is formed integrally with the landing floor. The drive unit is disposed on the concrete base at an angle other than a right angle to the adjacent wall of the elevator shaft. An access port for the control device is provided in the adjacent wall.

A disadvantage of this known device is that the arrangement of the drive unit on the adjacent wall reduces the free cross section for the elevator car. In a hoistway with a square cross section, the only usable horizontal area left for the elevator car is a narrow rectangular area.

[0004]

This is the point where the present invention seeks to make improvements. It is an object of the present invention to solve the disadvantages of the known devices and to propose an arrangement of hoistway equipment that makes optimal use of the hoistway cross-section, as characterized in claim 1. .

[0005]

SUMMARY OF THE INVENTION An advantage provided by the invention is that space is essentially saved by the arrangement of the drive unit in the cross section of the hoistway. The only space required by the drive unit in the hoistway cross section is the space for the drive sheave. Due to the arrangement of the counterweights, a free space is formed on the side that cannot be used by the elevator car, and the drive unit is arranged in this free space. The arrangement of the drive unit according to the present invention is such that the rope is guided at a convenient angle between the drive sheave, the elevator car and the counterweight, so that the suspension rope is guided over the drive sheave. In addition, excessive tension can be avoided in the lateral direction. A further advantage is that maintenance work on the drive unit and manual operation of the elevator car for evacuation can be performed from the landing floor.

Hereinafter, the present invention will be described in detail with reference to the drawings showing two embodiments.

[0007]

FIG. 1 is a horizontal sectional view of an elevator shaft 1. As shown in FIG. In the elevator hoistway 1, an elevator car 2 having an operation panel 2.5, a counterweight 3, and a drive unit 4 erected obliquely with respect to an adjacent hoistway wall are arranged. The elevator shaft 1 includes a left wall 1.1, a rear wall 1.2, a right wall 1.3, a front wall 1.4, a shaft pit 1.5, and an upper space of a shaft (not shown). The front wall 1.4 of each floor 5 has a door opening 1.41. The door opening 1.41 is provided in the door architect 1.
42 and the hoistway door 1.43. The central opening hoistway door 1.43 can be operated by a central opening car door 2.4. In the hoistway, the hoistway pit ladder 1.51 for dive into the hoistway pit 1.5, the hoistway lighting 1.6, and fixed to the building, the first bracket 1.8 and the second Anchor rail attached to bracket 1.9 of 1.
7 are provided. The first bracket 1.8 supports the counterweight guide rail 3.1,
On the counterweight guide rail 3.1, the counterweight 3 is guided along the height of the hoistway. The second bracket 1.9 supports the car guide rail 2.1, on which the elevator car 2 is guided over the height of the hoistway. A hoistway information transmitter 1.91 for monitoring the position of the car;
An overspeed governor 1.92 for monitoring the speed of the car is fixed to the second bracket 1.9. The hoistway information transmitter 1.91 of the elevator shaft 1 works with the hoistway information transmitter 2.3 of the elevator car 2.

FIG. 1 shows an elevator car 2 suspended from the side.
1 shows an example of an elevator apparatus based on the rucksack principle having the following. The elevator car 2 is supported by the car sling 2.2 and the car sling 2.2.
Is guided on the car guide rail 2.1,
It is suspended by a suspension rope (not shown). The guide shoes and / or guide rollers of the car frame 2.2 are not shown. The present invention is also applicable to an elevator apparatus having an elevator car suspended at the center.

The drive unit 4 comprises a first wall recess 1.
21 and a support 1.22
Partially located above. The drive sheave 4.1 of the drive unit 4 projects into the elevator shaft 1. The drive unit 4 can also be completely fixed in the wall recess 1.21 due to its geometry. Support 1.
22 transmits mechanical force and structurally generated noise to the pit floor of the hoistway pit 1.5. The elevator car 2 is connected to the counterweight 3 by a suspension rope. The suspension rope is guided over the drive sheave 4.1 and is connected to a deflection sheave arranged in the upper space of the hoistway. It is guided around. In this example,
Deflection sheaves 2.8, 2.9 for the elevator car 2 are shown. The suspension rope extends upward from the drive sheave 4.1 and is wrapped around a separate deflecting sheave for the counterweight and the elevator car 2, from which it extends again downwards and has its end at the counter. The weight is fixed to the elevator car 2. Instead of a support base, there may be brackets or corners on the rear wall. First
Above the drive unit 4 in the recess 1.21 of the wall of
A controller cabinet 6 is arranged. The drive unit 4 and the controller cabinet 6 can be approached from the landing floor 5 via the maintenance door 1.23.

In the preferred embodiment shown, the drive unit 4 and the controller cabinet 6 are arranged obliquely on the bottom floor 5. It is also conceivable to arrange the controller cabinet 6 and the drive unit 4 of the elevator unit on another floor of the elevator installation.

In the arrangement according to the invention, manual evacuation of an elevator user trapped in the elevator car 2 is possible from the landing floor 5. If maintenance door 1.23 is opened, elevator hoistway 1
3. The brake of the drive unit 4 arranged at the corner of the corner
2, and the wearable handwheel 4.3 can be operated, and the elevator car 2 can be moved up and down toward the next floor 6 according to the load capacity.

FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 in which the drive unit 4 is disposed obliquely on the floor 5. The compactly configured drive unit 4 may or may not mesh with the gear. The handwheel 4.3 is in the holder, but is removed from the holder when necessary and mounted on the drive unit 4.

FIG. 3 shows another modified embodiment.
In this embodiment, the drive unit 4 is arranged obliquely on the bottom floor 5 and has a recess 1.
21 and partially in the recess 1.24 of the second wall of the right side wall 1.3. According to this modification, an elevator apparatus having an elevator car 2 having a large depth can be realized. In addition, since the rope can be guided at a convenient angle between the drive sheave, the elevator car and the counterweight, tension is applied to the suspension rope guided over the drive sheave. Rarely occurs in

FIG. 4 shows the positions of the deflection sheaves 2.10 and 2.11 for the elevator car 2 and the counterweights 3.
And the positions of the deflection sheaves 3.10, 3.11 for. The longitudinal axes of the deflecting sheaves 2.10, 2.11 and the longitudinal axes of the deflecting sheaves 3.10, 3.11 form an acute angle, whereby the drive sheave and the deflecting sheaves. 2.
Excessive fleet angle of the suspension rope guided around 10, 2.11, 3.10, 3.11 can be avoided.

A rope arrangement for the center car of the elevator car 2 or a rope arrangement for the suspended elevator car 2 is also possible.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of an elevator shaft having an elevator car, a counterweight, and a drive unit.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a view showing another modified embodiment of the arrangement of the drive units according to the present invention.

FIG. 4 is a diagram showing another modified embodiment of the illustrated sheave.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevator hoistway 2 Elevator car 3 Counter weight 4 Drive unit 5 Bottom floor 6 Controller cabinet 1.21, 1.24 Indentation in wall 4.1 Drive sheave 1.23 Maintenance door

Claims (4)

[Claims] Claims: 1. An elevator hoistway (1), wherein:
An elevator apparatus having a drive unit (4) for driving an elevator car (2) and a counterweight (3) by a suspension rope, wherein the drive unit (4) is disposed obliquely in the elevator hoistway (1). An elevator apparatus characterized by being performed. 2. The drive unit (4) is partially disposed in the wall recess (1.21, 1.24), and the drive sheave (4.1) of the drive unit (4) is lifted and lowered by the elevator. The elevator device according to claim 1, characterized in that it protrudes into the road (1). 3. A controller cabinet (6) is arranged above the drive unit (4), and the controller cabinet (6) and the drive unit (4) are accessible via a maintenance door (1.23). The elevator apparatus according to claim 1, wherein the elevator apparatus is provided. 4. The method according to claim 1, wherein the controller cabinet and the drive unit are arranged on a bottom floor of the elevator installation. The elevator device as described.